+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* The MORUS-640 Authenticated-Encryption Algorithm
*
* Copyright (c) 2016-2018 Ondrej Mosnacek <omosnacek@gmail.com>
* Copyright (C) 2017-2018 Red Hat, Inc. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the Free
- * Software Foundation; either version 2 of the License, or (at your option)
- * any later version.
*/
#include <asm/unaligned.h>
const struct morus640_ops *ops)
{
struct skcipher_walk walk;
- u8 *dst;
- const u8 *src;
ops->skcipher_walk_init(&walk, req, false);
while (walk.nbytes) {
- src = walk.src.virt.addr;
- dst = walk.dst.virt.addr;
+ unsigned int nbytes = walk.nbytes;
+
+ if (nbytes < walk.total)
+ nbytes = round_down(nbytes, walk.stride);
- ops->crypt_chunk(state, dst, src, walk.nbytes);
+ ops->crypt_chunk(state, walk.dst.virt.addr, walk.src.virt.addr,
+ nbytes);
- skcipher_walk_done(&walk, 0);
+ skcipher_walk_done(&walk, walk.nbytes - nbytes);
}
}